NCP1392BDR2G is a PWM controller integrated circuit (IC) used for power supply applications. It is widely used in high-performance offline flyback converters. The IC includes multiple functions, such as overvoltage protection, undervoltage lockout, soft-start, frequency jittering, and overcurrent protection.

The primary application fields for NCP1392BDR2G are power converters and chargers. Due to its high efficiency and stability, it can ensure stable output of the power supply within a wide voltage range, making it widely used.

In power converters, NCP1392BDR2G can be used to control current, voltage, and power parameters to ensure the output power meets the required specifications. Additionally, it can protect the circuit from power fluctuations and faults through functions such as overvoltage protection, undervoltage lockout, and overcurrent protection.

In summary, NCP1392BDR2G is a powerful PWM controller widely used in power converters and chargers. Its high efficiency and stability allow circuits to maintain stable output within various voltage ranges, while its multiple protection functions ensure the safety and stability of the circuit.